暂存一下,防止丢失

internal/infrastructure/approval/submission_event.go

@@ -0,0 +1,38 @@
+package approval
+
+import (
+	"context"
+	"strconv"
+
+	"gorm.io/gorm"
+
+	approvalapp "github.com/break/junhong_cmp_fiber/internal/application/approval"
+	"github.com/break/junhong_cmp_fiber/internal/infrastructure/messaging/outbox"
+	"github.com/break/junhong_cmp_fiber/pkg/constants"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+)
+
+// SubmissionEventWriter 将通用审批申请写入公共 Outbox。
+type SubmissionEventWriter struct {
+	outbox *outbox.Repository
+}
+
+// NewSubmissionEventWriter 创建通用审批申请 Outbox Writer。
+func NewSubmissionEventWriter(repository *outbox.Repository) *SubmissionEventWriter {
+	return &SubmissionEventWriter{outbox: repository}
+}
+
+// Append 在调用方业务事务中追加渠道提交事件。
+func (w *SubmissionEventWriter) Append(ctx context.Context, tx *gorm.DB, event approvalapp.SubmissionRequestedEvent) error {
+	if w == nil || w.outbox == nil {
+		return errors.New(errors.CodeInternalError, "审批申请 Outbox Writer 未配置")
+	}
+	_, err := w.outbox.Append(ctx, tx, outbox.Envelope{
+		EventID: event.EventID, EventType: constants.OutboxEventTypeApprovalSubmissionRequested,
+		PayloadVersion: constants.ApprovalSubmissionPayloadVersionV1,
+		AggregateType:  "approval", AggregateID: strconv.FormatUint(uint64(event.InstanceID), 10),
+		ResourceType: event.BusinessType, ResourceID: strconv.FormatUint(uint64(event.BusinessID), 10),
+		BusinessKey: event.EventID, CorrelationID: event.CorrelationID, Payload: event,
+	})
+	return err
+}